"compaq presario v2000 charging problem"

hi can anybody help me coz i'm having trouble on charging my laptop. when i try to connect the ac power the charging light keeps on blinking and the icon keeps on alternating to AC and battery power and after an hour my battery drained and doesn't work anymore. then i bought a new battery but still the same thing happens ,the first time i placed the new battery it indicates that it is 99% then i tried to connect the ac power then the light blinks again and i recieved a message with low battery status and i disconnect it because i'm afraid that it might drain my battery again. I think my ac power is working because i tried to power up my comp without the battery and its working, i also tried to reformat and reinstall the system software but still the same.. can someone help me out here please..

1) Your AC adapter might have issues, it might give enough power to turn on the laptop, but it might not give enough power to charge the battery, or the other way around, it could have shorted and give more power than it should. If that's the case, try changing the AC adapter.

2) It could be a DC inverter issue (where you plug in your power cable) and doesn't properly send the power from the AC adapter to the battery, and if that's the case, you have to send it for repair or DC inverter replacement. Usually, they don't cost very much.

3) The worst thing that could be, is the motherboard, which does cost a lot to replace.

What you should do, is send it to a qualified laptop service center, they'll tell you exactly what's wrong with it, and if it's cost-effective to repair it.

Thanks so much Tendersound I'm gonna try the first step. and also i'm using my laptop in my car using a power inverter, does it affects my ac adapter? please advice if it is safe to use the inverter. thanks again..

i can not remember which ones, but read a few forum re compaq presario v2000, motherboards have problems, they were not recalled but many people got a replacement motherboard for free, from manufacturer. some of them had no warranty, no receipt nothing. still they replaced them.